Everyone has given you such good advice and you seem truly interested in making the best of the situation. The only thing I can add is to become a leader. This is your chance to be a leader in your chapter. Start by getting to know your pledge class. I am sure there are other girls who have similar feelings. All it takes is one strong group of dedicated women to transform a chapter. Decide that you're going to work to foster the sisterhood in your pledge class, make that your goal. Hopefully, the other stuff will follow. :-)